# Copyright 2020 The Pigweed Authors
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may not
# use this file except in compliance with the License. You may obtain a copy of
# the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.

import("//build_overrides/pigweed.gni")

import("$dir_pw_toolchain/arm_gcc/toolchains.gni")

declare_args() {
  # Enable the pw_target_runner for on-device testing.
  pw_use_test_server = false
}

_target_config = {
  # Use the logging main.
  pw_unit_test_MAIN = "$dir_pw_unit_test:logging_main"

  # Configuration options for Pigweed executable targets.
  pw_build_EXECUTABLE_TARGET_TYPE = "stm32f429i_executable"

  pw_build_EXECUTABLE_TARGET_TYPE_FILE =
      get_path_info("stm32f429i_executable.gni", "abspath")

  # Path to the bloaty config file for the output binaries.
  pw_bloat_BLOATY_CONFIG = "$dir_pw_boot_armv7m/bloaty_config.bloaty"

  if (pw_use_test_server) {
    _test_runner_script = "py/stm32f429i_disc1_utils/unit_test_client.py"
    pw_unit_test_AUTOMATIC_RUNNER =
        get_path_info(_test_runner_script, "abspath")
  }

  # Facade backends
  pw_assert_BACKEND = dir_pw_assert_basic
  pw_boot_BACKEND = dir_pw_boot_armv7m
  pw_cpu_exception_ENTRY_BACKEND = dir_pw_cpu_exception_armv7m
  pw_cpu_exception_HANDLER_BACKEND = "$dir_pw_cpu_exception:basic_handler"
  pw_cpu_exception_SUPPORT_BACKEND = "$dir_pw_cpu_exception_armv7m:support"
  pw_log_BACKEND = dir_pw_log_basic
  pw_sys_io_BACKEND = dir_pw_sys_io_baremetal_stm32f429
  pw_malloc_BACKEND = dir_pw_malloc_freelist

  pw_boot_armv7m_LINK_CONFIG_DEFINES = [
    "PW_BOOT_FLASH_BEGIN=0x08000200",
    "PW_BOOT_FLASH_SIZE=512K",

    # TODO(pwbug/219): Currently "pw_tokenizer/detokenize_test" requires at
    # least 6K bytes in heap when using pw_malloc_freelist. The heap size
    # required for tests should be investigated.
    "PW_BOOT_HEAP_SIZE=7K",
    "PW_BOOT_MIN_STACK_SIZE=1K",
    "PW_BOOT_RAM_BEGIN=0x20000000",
    "PW_BOOT_RAM_SIZE=192K",
    "PW_BOOT_VECTOR_TABLE_BEGIN=0x08000000",
    "PW_BOOT_VECTOR_TABLE_SIZE=512",
  ]

  current_cpu = "arm"
  current_os = ""
}

_toolchain_properties = {
  final_binary_extension = ".elf"
}

_target_default_configs = [
  "$dir_pw_build:extra_strict_warnings",
  "$dir_pw_toolchain/arm_gcc:enable_float_printf",
]

pw_target_toolchain_stm32f429i_disc1 = {
  _excluded_members = [
    "defaults",
    "name",
  ]

  debug = {
    name = "stm32f429i_disc1_debug"
    _toolchain_base = pw_toolchain_arm_gcc.cortex_m4f_debug
    forward_variables_from(_toolchain_base, "*", _excluded_members)
    forward_variables_from(_toolchain_properties, "*")
    defaults = {
      forward_variables_from(_toolchain_base.defaults, "*")
      forward_variables_from(_target_config, "*")
      default_configs += _target_default_configs
    }
  }

  speed_optimized = {
    name = "stm32f429i_disc1_speed_optimized"
    _toolchain_base = pw_toolchain_arm_gcc.cortex_m4f_speed_optimized
    forward_variables_from(_toolchain_base, "*", _excluded_members)
    forward_variables_from(_toolchain_properties, "*")
    defaults = {
      forward_variables_from(_toolchain_base.defaults, "*")
      forward_variables_from(_target_config, "*")
      default_configs += _target_default_configs
    }
  }

  size_optimized = {
    name = "stm32f429i_disc1_size_optimized"
    _toolchain_base = pw_toolchain_arm_gcc.cortex_m4f_size_optimized
    forward_variables_from(_toolchain_base, "*", _excluded_members)
    forward_variables_from(_toolchain_properties, "*")
    defaults = {
      forward_variables_from(_toolchain_base.defaults, "*")
      forward_variables_from(_target_config, "*")
      default_configs += _target_default_configs
    }
  }
}

# This list just contains the members of the above scope for convenience to make
# it trivial to generate all the toolchains in this file via a
# `generate_toolchains` target.
pw_target_toolchain_stm32f429i_disc1_list = [
  pw_target_toolchain_stm32f429i_disc1.debug,
  pw_target_toolchain_stm32f429i_disc1.speed_optimized,
  pw_target_toolchain_stm32f429i_disc1.size_optimized,
]